Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results
The shear behaviors of concrete-frozen soil interface are important for analyzing the performance of engineering structures buried in the frozen ground. In this paper, a series of direct shear tests were carried out to determine the concrete-soil interface behaviors at different test temperatures (1...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/7260598 |
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| _version_ | 1849690668931219456 |
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| author | Meng Xiong Pengfei He Yanhu Mu Xinlei Na |
| author_facet | Meng Xiong Pengfei He Yanhu Mu Xinlei Na |
| author_sort | Meng Xiong |
| collection | DOAJ |
| description | The shear behaviors of concrete-frozen soil interface are important for analyzing the performance of engineering structures buried in the frozen ground. In this paper, a series of direct shear tests were carried out to determine the concrete-soil interface behaviors at different test temperatures (19°C, −1°C, −3°C, and −5°C) and initial water contents (9.2%, 13.1%, 17.1%, and 20.8%) of soils. The interface shear behaviors, including the shear stress versus horizontal displacement, interface cohesion, and interface friction coefficient, were analyzed based on the test results. Then, a simple, nonlinear model was proposed and verified for the interface shear behaviors. The results show that the effect of initial water content and test temperature on the interface shear behavior is significant, and the peak stress increases with the increasing initial water content and decreasing test temperature. The interface cohesion is sensitive to the test temperature and initial water content, while the interface friction coefficient is insensitive to both the factors. The parameters of the simple nonlinear model can be gained by back-analyzing the test results. The predictions made by the proposed model are found to be in good agreement with the experimental results. |
| format | Article |
| id | doaj-art-eef186c56e46400788a4c1cac026ef05 |
| institution | DOAJ |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-eef186c56e46400788a4c1cac026ef052025-08-20T03:21:15ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/72605987260598Modeling of Concrete-Frozen Soil Interface from Direct Shear Test ResultsMeng Xiong0Pengfei He1Yanhu Mu2Xinlei Na3Lanzhou University of Technology, Lanzhou 730050, ChinaLanzhou University of Technology, Lanzhou 730050, ChinaState Key Laboratory of Frozen Soil Engineering, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, ChinaGeotechnical Group, Golder Associates Inc, Anchorage 99507, USAThe shear behaviors of concrete-frozen soil interface are important for analyzing the performance of engineering structures buried in the frozen ground. In this paper, a series of direct shear tests were carried out to determine the concrete-soil interface behaviors at different test temperatures (19°C, −1°C, −3°C, and −5°C) and initial water contents (9.2%, 13.1%, 17.1%, and 20.8%) of soils. The interface shear behaviors, including the shear stress versus horizontal displacement, interface cohesion, and interface friction coefficient, were analyzed based on the test results. Then, a simple, nonlinear model was proposed and verified for the interface shear behaviors. The results show that the effect of initial water content and test temperature on the interface shear behavior is significant, and the peak stress increases with the increasing initial water content and decreasing test temperature. The interface cohesion is sensitive to the test temperature and initial water content, while the interface friction coefficient is insensitive to both the factors. The parameters of the simple nonlinear model can be gained by back-analyzing the test results. The predictions made by the proposed model are found to be in good agreement with the experimental results.http://dx.doi.org/10.1155/2021/7260598 |
| spellingShingle | Meng Xiong Pengfei He Yanhu Mu Xinlei Na Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results Advances in Civil Engineering |
| title | Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results |
| title_full | Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results |
| title_fullStr | Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results |
| title_full_unstemmed | Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results |
| title_short | Modeling of Concrete-Frozen Soil Interface from Direct Shear Test Results |
| title_sort | modeling of concrete frozen soil interface from direct shear test results |
| url | http://dx.doi.org/10.1155/2021/7260598 |
| work_keys_str_mv | AT mengxiong modelingofconcretefrozensoilinterfacefromdirectsheartestresults AT pengfeihe modelingofconcretefrozensoilinterfacefromdirectsheartestresults AT yanhumu modelingofconcretefrozensoilinterfacefromdirectsheartestresults AT xinleina modelingofconcretefrozensoilinterfacefromdirectsheartestresults |